CN106374959A - Circuit, transmission system and method for determining proximity of an object - Google Patents
Circuit, transmission system and method for determining proximity of an object Download PDFInfo
- Publication number
- CN106374959A CN106374959A CN201610824222.4A CN201610824222A CN106374959A CN 106374959 A CN106374959 A CN 106374959A CN 201610824222 A CN201610824222 A CN 201610824222A CN 106374959 A CN106374959 A CN 106374959A
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- CN
- China
- Prior art keywords
- antenna
- transmission signal
- characteristic
- transmission
- circuit
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
- H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
Abstract
The invention relates to a circuit, a transmission system and a method for determining proximity of an object. A circuit (100) includes a sensing circuit (102) for a first antenna (106a) and a second antenna (106b), the sensing circuit (102) including an adjustable characteristic that is based on a proximity of an object to the first or second antenna used to transmit a transmit signal. An evaluation circuit (104) is coupled to the sensing circuit (102). The evaluation circuit (104) is configured to monitor the characteristic of the sensing circuit (102) and to determine whether the characteristic fulfills a predetermined criterion.
Description
Technical field
Example relates to the sensing circuit of proximity detection and is related to mobile telecommunication apparatus.
Background technology
Wherein should determine that the application that object is present in another its near vicinity is a lot.For example, including using wireless lan mark
Accurate or mobile communication standard come to be wirelessly transmitted signal emitter equipment when tissue is when transmitting near antenna, can
Can require to reduce power, described wireless lan standard or the mobile communication standard such as mobile communication standard of transmission signal
One of version, i.e. Long Term Evolution (lte) standard.Federal Communications Committee (fcc) and ETSI
(etsi) the accessible radiation intensity being directed to the maximum of tissue provides rule.For example, do not allow more than the tool of maximum
The absorbance (sar, w/kg) of body.Sar depends on tissue to the nearness of the antenna being used for radiation signal and the work(of transmission
The amount of rate and form.In order to abide by the regulations it is necessary to meet some test cases.For example, when tissue or have similar spy
Property measurement body (sar anthropometric dummy) and studied equipment at its arbitrary position during directly contact, sar must surpass
Cross predetermined threshold value.In order to determine object or such as tissue to the nearness of equipment, it is possible to use capacitive sensor.
However, when by monitor object to all of six sides of such as rectangular apparatus nearness when it may be necessary to a lot of sensor,
For example it is directed to tablet PC or mobile phone, amount to sizable cost and be used for proximity detection.In object or human body
Tissue the nearness of determination in the case of, it is desirable to reduce Wireless Telecom Equipment or according to research need equipment within
Emitter through-put power so that meet sar require.
There may be and the expectation determining the probability of nearness in a more efficient way is provided.
Content of the invention
According to an aspect of this disclosure, disclose a kind of circuit (100), comprising: for first antenna (106a) and
The sensing circuit (102) of two antennas (106b), wherein said sensing circuit (102) includes passing with regard to being used for transmission based on object
The adjustable characteristic of the nearness of the described first or second antenna of defeated signal；And it is coupled to described sensing circuit (102)
Assessment circuit (104), described assessment circuit (104) is configured to monitor the characteristic of described sensing circuit (102) and determine
Whether described characteristic meets predetermined standard.
According to another aspect of the present disclosure, disclose a kind of Transmission system, comprising: first antenna (106a), it is operable
With transmission signal；Second antenna (106b), its operable to transmit described signal；And circuit (100).
According to the another aspect of the disclosure, disclose a kind of mobile communication equipment including Transmission system as above
(600).
According to the another aspect of the disclosure, disclose a kind of for determining object to can be used for transmitting the first of transmission signal
The method of the nearness of antenna (106a) or the second antenna (106b), comprising: monitor the characteristic of sensing circuit (102), institute
State sensing circuit (102) and include the adjustable of the nearness based on object to the first or second antenna being used for transmission transmission signal
Whole characteristic；And if described characteristic meets predetermined standard it indicates that object near the described first or second antenna.
According to the another aspect of the disclosure, disclose a kind of for determine object arrive operable to transmit transmission signal the
The device of the nearness of one antenna (106a) or the second antenna (106b), comprising: have based on object to be used for transmit institute
State the device of the adjustable characteristic of the nearness of the described first or second antenna of transmission signal；And be used for monitoring described sense
The described characteristic of slowdown monitoring circuit (102) and for determining whether described characteristic meets the device of predetermined standard.
Brief description
Below by only by way of example and some embodiments of device and/or method are described with reference to the drawings, wherein
Fig. 1 illustrates the example of circuit；
Fig. 2 illustrates the further of the circuit for determining the nearness to the first or second antenna for the object using third antenna
Example；
Fig. 3 illustrates the further example of the circuit for determining nearness；
Fig. 4 illustrates the further example for determining nearness；
Fig. 5 illustrates for determining the flow chart that object arrives the example of the method for the nearness of first antenna and the second antenna；With
And
Fig. 6 illustrates the example of mobile telecommunication apparatus.
Specific embodiment
Various examples are more fully described below with reference to accompanying drawing, some examples are illustrated in the accompanying drawings.In in figure, it is
Clear, the thickness in line, layer and/or region is exaggerated.
Correspondingly although further example can have the form of various modifications and substitutions, but its example passes through example
Mode be illustrated in figure, and will be described in detail herein.However, it should be understood that not existing further example
The intention of specific form disclosed in being limited to, but contrast, covering is fallen into the scope of the present disclosure by further example
Within all of modification, equivalent and substitute.Run through the description of figure, identical reference refers to same or similar element.
It should be understood that when element is referred to as " being connected " or " being coupled " to another element, it can be directly connected
Or it is coupled to other elements, or medium element there may be.On the contrary, when element be referred to as " being directly connected " or
When person's " directly coupling " is to another element, there is not medium element.Should explain in a similar manner and be used for being described in unit
Relation between part other words (for example, " and ... between " to " between directly existing ... ", " adjacent " is to " directly
Adjacent " etc.).
Terms used herein is merely for the purpose describing particular example it is not intended to limit example.As used herein
Like that, unless context is expressly otherwise indicated, otherwise singulative " ", " one " and " being somebody's turn to do " are intended to also include plural shape
Formula.It is to be further understood that when herein using term " composition ", " containing ", " inclusion " and/or during "comprising", it specifies statement
The presence of feature, entirety, step, operation, element and/or part, but be not excluded for one or more others features, entirety,
The presence of step, operation, element, part and/or its group or additional.
Unless otherwise defined, otherwise all of term used herein (including technology and science term) have with by
The identical implication that the those of ordinary skill of the technical field belonging to example is generally understood that.It is to be further understood that for example usual
Use dictionary defined in those terms term, should be interpreted as having with the context of correlation technique they
The consistent implication of implication, and will not be explained in the sense that Utopian or excessively formal, unless herein clearly such as
This definition.
Fig. 1 illustrates the example of the circuit 100 including sensing circuit 102 and assessment circuit 104.Sensing circuit 102 includes
Based on or depending on object arrive be used for transmission transmission signal the first or second antenna nearness adjustable spy
Property.If sensing circuit 102 can have object being used for transmitting near the transmission antenna of described transmission signal, change or
The controlled characteristic of person.Transmission antenna can be first antenna 106a or the second antenna 106b.In FIG, antenna 106a and
106b is only in order at descriptive purpose and is illustrated, and they be not necessarily for monitoring in one of some time object to antenna or
A part for the circuit 100 of the nearness of two antennas of person.Assessment circuit 104 is coupled to sensing circuit 102 to monitor sensing electricity
The characteristic on road 102.If providing described object proximity to be used for antenna (first antenna 106a or the second antenna transmitting
106b) the sensing circuit 102 of then its characteristic changing, single sense circuit 102 and associated assessment circuit 104 can be used for really
It is scheduled on the presence being potentially used for the object near all of antenna of transmission signal.Single sense circuit and associated commenting
Estimate circuit can cover enough by carried out by two antennas continuous or alternate transmit, it is to use such as multi input list
It is common use-case in the modern telecommunications applications of output (miso) or multiple-input and multiple-output (mimo) technology.If object is
Sensing circuit is then made near the combination of one antenna 106a, the second antenna 106b or first antenna 106a and the second antenna 106b
Change its characteristic, can avoid within individual equipment using multiple proximity sensor, still meter and with such as fcc or
The sar of etsi requires consistent all related use-cases.
According to some examples, if the characteristic monitoring meets predetermined standard, assessment circuit 104 generates and indicates first
The proximity signal of the presence of object near the transmission antenna of antenna 106a or the second antenna 106b.If the spy of such as supervision
Property is the closure with regard to such as equipment for the part of sensing circuit or same circuit or the electric capacity of ground level, then electric capacity
Change can indicate the object of such as human body or tissue near an antenna being used for transmission or multiple antenna.
Being used for an antenna transmitting or multiple antenna can be one of first antenna or the second antenna, or is the simultaneously
One antenna and the second antenna.According to some examples, for generating the transmission letter by first antenna and/or by the second antenna transmission
Number emitter be controlled to reduce the power of transmission signal, or alternatively change any other relevant parameter, reduce letter
Number effective transmission quantity of power, for example modulation or emitter is changed by the nearness in response to determining or sky
The operator scheme of line.This can be used to only using miso the or mimo system of single sense circuit and associated assessment circuit
In observe sar require.The principle of description is also applied similarly to the system being made up of more than two antenna.
For example, sensing circuit 102 can include two or more electrodes, described two or more electrodes formed via
The electric capacity that assessment circuit 104 measures or monitors.Assessment circuit 104 for example can be implemented within integrated circuit (ic).For
The some of the electric capacity monitoring limit or predetermined threshold value can trigger the power back-off of radio or emitter in advance.That is,
When meeting the predetermined threshold value standard for electric capacity, the through-put power of emitter (radio) can be lowered.
According to some examples, when meeting single threshold value standard, power is reduced to predetermined fixing rank.According to entering one
Step example, in multiple steps, multiple threshold value standards are defined, and power is lowered, each step of through-put power or
Rank corresponds to single threshold value standard.According to further example, depending on the nearness of the determination to transmission antenna for the object, pass
Defeated power is continuously reduced, and this corresponds to first antenna or the distance to the second antenna.
If using object in the transmission sky of first antenna 106a being used for transmission signal or the second antenna 106b
Near line then the single sense circuit 103 of its characteristic changing when it may not be necessary to multiple sensing circuit.Extremely sensitive when expecting
During the capacitance variations of signal or significant quantity, capacitive sensor electrode or sensing circuit can for example have millimeter or li
The rational size of meter ruler cun.Using the example in circuit described herein can save mobile phone, mobile telecommunication apparatus,
The area of the significant quantity within tablet PC etc..When only needing one group of electrode, can be with reduces cost and complexity.Additionally,
When proximity detection does not need to occur on multiple sides of equipment, multiple integrated circuits or the integrated electricity of multiport can be saved
Road and associated cost.
In certain embodiments, reduce the predetermined standard of through-put power with regard to it and can individually be adapted to specific use-case
And geometry.For example, provided that having depending on material or tissue and first antenna 106a, the second antenna 106b
Or the sensing circuit 102 of the electric capacity of the relative position of combination of first antenna 106a and the second antenna 106b, then sensing circuit 102
Electric capacity the distance of object to antenna or the dependency of nearness are determined by specific geometry or configuration.Can count
Calculate or measure the process (the course of the capacity) of capacitance.Further, the electromagnetism being absorbed by object
Energy depends on object to irradiator, that is, arrive first antenna 106a and/or the distance of the second antenna 106b.So, given suction
Receive energy or sar value corresponding to sensing circuit electric capacity, and correspond to undesirable sar value electric capacity can be chosen
Reducing thus being less than the threshold value of undesirable sar value or predetermined mark in operation as the power triggering emitter
Accurate.In other words, predetermined standard can correspond to by object to the absorption of the electromagnetic energy radiating from one of antenna can
The maximum accepting.In other words, predetermined standard may correspond to object and to one of antenna or arrives sensing circuit
The acceptable maximum of the distance of part.Electric capacity is only for become depending on the position of object near antenna
One example of the characteristic of sensing circuit changed.
Fig. 2 illustrates wherein sensing circuit and includes the antenna 112 of the signal for receiving the first signal type and first day
Line 106a and the second antenna 106b is used for receiving or transmit the signal of the secondary signal type different from the first signal type
Example.I.e., for example, the existing reception antenna for Another Application be used as sensing circuit a part thus
Save additional area.When antenna is part rather than the additionally transmission signal of the sensing circuit being only applied to receipt signal
Antenna a part of when, it is possible to achieve the height between one of sensing circuit and antenna 106a and 106b mutual every
From.If for example considering wlan or cellular transmission system, can be with the frequency than the radiofrequency signal by means of antenna transmission
The much lower frequency of rate determines that the electric capacity of one of antenna radiator changes.If the radio frequency of wlan or cellular transmission passes
The fraction of defeated power is coupled to sensing circuit and is transmitted in assessment circuit, if first antenna 106a or the second antenna
106b is the part of sensing circuit, then may cause high intermodulation distortion within assessment circuit.If even small amount of biography
Defeated power passes through to block circuit propagation to non-linear sensing circuit 102 and its associated assessment circuit 104, then it may draw
Play significant intermodulation distortion.Few due to can be then decremented by the cross-couplings of antenna 112 from antenna 106a and 106b, so making
Can be used to avoid intermodulation distortion with the antenna 112 of only reception as the part of the electrode of sensing circuit, particularly when antenna quilt
When being configured to receive the signals of signal type different from first antenna 106a and the second antenna 106b.Example in Fig. 2
In, antenna 112 can for example operable with receive from global positioning system (gps) satellite signal, and antenna 106a and
106b can be used for transmitting the wireless lan at the radio frequency within the scope of 700 mhz to 6g hz or mobile communication letter
Number.
For example, in miso system, first antenna 106a can be used to simultaneously transmit to be believed by the transmission that emitter generates
Number and receive the first receipt signal of miso system, and the second antenna 106b may be configured to receive the second of miso system
Receipt signal.Using be disposed in antenna 116a and 116b between the two and be configured to reception have with for antenna
The receipt signal of the different signal type of the receipt signal of 116a with 116b can provide object connecing to antenna 116a and 116b
The undistorted determination of recency, and can avoid when transmission antenna is used as the part of sensing circuit or when in sky simultaneously
When cross-couplings between line 106a or 106b and antenna 112 otherwise occur it may happen that intermodulation distortion.
According to some examples, this permission covering wherein antenna 106a and 106b is used simultaneously in and may require first
Minimum range between antenna 106a and the second antenna 106b is to avoid the multiple-input and multiple-output of the transmission of sar focus of overlap
Scene.Overlapping focus meant here that the summation of the sar value being caused by first antenna and the second antenna significantly higher than by
The sar value that first antenna or the second antenna individually cause.Using the sky between antenna 106a and 106b being used for transmission
Line 112 can still cover two transmission antennas and therefore arrive the detection of the nearness of two parts within system,
Its for for tissue be the generation of the signal being potentially harmful to be important.
Although some scenes can be used only in a fixation within miso device predetermined antenna be used for transmission or
Person is as transmission antenna, but is depending on environment and characteristics of signals, and other scenes can be dynamically selected multiple available antennas
In which antenna should be used for transmission and other antenna is only applied to receive.
In other words, the example illustrating in fig. 2 reduces assessment circuit 104 or sensing using the antenna of three or more
The quantity of device ic.The antenna 112 being only used for signal reception purpose can be placed between two transmission antenna 106a and 106b
And it is used as being coupled to a part for the sensing circuit of assessment circuit 104 or sensor circuit or ic.When using two
Or during more transmission antenna, their relative spacing can more than transmission and reception antenna between interval because
Two transmission antennas can otherwise produce the sar focus of overlap, and it will require the higher degradation of through-put power then
Observe to require.In order to avoid such scene, the interval between two emitting antennas can be increased.This can make
Can the third antenna for different signal types between two antenna 106a and 106b use, without for additional
Space requirement.This can also lead to better isolation between proximity sensor ic and emitter and therefore may be used
To be used for avoiding intermodulation distortion, because the rf power of decrement is coupled to sensor ic.Intermodulation distortion can be further coupled to
The receptor of equipment and cause serious sensing to reduce (de-sense).The coupling in sensing circuit or assessment circuit for the radio frequency
The sensor that conjunction can be otherwise result in mistake reads, and it possibly even leads to the completely interference of emitter, that is, transmits
Power strong reduction, become too small to by the communication being executed using emitter receiver-side receive.
Fig. 3 schematically illustrates a particular example for such system: described system includes first antenna
106a and the second antenna 106b.Transceiver 302 is configured to simultaneous transmission and receipt signal, and receptor 304 is configured to
Do not generate receipt signal in the case of the ability of transmission signal.Transceiver 302, receptor 304, first antenna 106a and second
Antenna 106b is coupled to signaling switch element 306(radio-frequency (RF) switch), described signaling switch element is configured to select transceiver 302
It is coupled to first antenna 106a to selecting property, and receptor is coupled to the second antenna 106b, and vice versa.Depending on spy
Fixed antenna performance and the pattern of operation, first antenna 106a or the second antenna 106b be used for transmission and other antennas only by
For the purpose receiving.
Assessment circuit 104 is coupled to 302 signal paths of transceiver so that transmitting or transmission antenna always become sensing
The part of circuit.That is, if first antenna is used for transmission signal or sensing circuit includes the second antenna 106b, if second
Antenna is used for transmission signal, then transceiver circuit 302 is coupled to first antenna by switch entity or signaling switch element 306
106a or be coupled to the second antenna 106b, and assessment circuit 104 is coupled to transceiver 302 so that sensing circuit includes first
Antenna 106a.The antenna being used for transmitting automatically becomes the part of sensing circuit so that stemming from its part in radiation
Nearby automatically sense the tissue near transmission antenna.One assessment circuit 104 can cover in multiple-input and multiple-output enough
Two scenes in system, to meet sar requirement.
In other words, Fig. 3 illustrates the wherein low-frequency sensor signal by means of assessment circuit 104 assessment and is incorporated into wherein
Exchange transceiver or main transceiver 302 and diversity by means of signaling switch element 306 or radio-frequency (RF) switch between antenna pair
High frequency radio signals in the scheme of receptor 304.Sensor signal was incorporated into the radio frequency letter of transceiver before switch 306
Number, and nearness information is by this way always from the antenna realization being used for transmission.Can send out in some application scenarios
The configuration now illustrating in figure 3, is wherein switched using DPDT (dpdt) rf and exchanges antenna transceiver/receptor pair.Those
The arrangement of species can for example be used in some equipment, to improve the performance of radiation for different use-cases and/or to strengthen use
The control (grips) to equipment for the family.Transceiver and receptor to may, for example, be main honeycomb fashion (transmission and receive) and diversity/
Mimo honeycomb fashion (only receives).In such use-case, sensor signal can be incorporated into before signaling switch element 306
The radiofrequency signal of transceiver 302.Then sensor signal is always driven to transmission antenna, and this transmission antenna is its input power
The antenna that will be controlled to require in accordance with sar.One proximity sensor or a single assessment circuit 104 can be used for
Cover the region of two antenna 106a and 106b.
Fig. 4 illustrates further example, and described further example for example also be can use with multi-input multi-output system, that is,
The system of the transmission and reception that are used simultaneously in signal with wherein first antenna 106a and the second antenna 106b can use.In the diagram
In the example of diagram, switch element 406 is used for, at the first moment, first antenna 106a is coupled to assessment circuit 104, and
And the second antenna 106b is coupled to assessment circuit 104 at the second moment.That is, assessment circuit 104 be coupled to antenna 106a and
One of in 106b is so that two antennas become the part of sensing circuit at different time intervals.Additionally, for many
Input multi output scene, single assessment circuit or sensor ic can monitor enough object or tissue to irradiator or
The nearness of person's antenna, described irradiator or antenna are used for transmitting or sending enabling the system to become want in accordance with sar
The radiofrequency signal asked.According to some examples, switch element 406 alternately by assessment circuit 104 be coupled to first antenna 106a with
And be coupled to the second antenna 106b such that it is able to only avoided by two antenna 106a using a single assessment circuit 104 and
The generation of the high sar value that one of them of 106b causes.In further example, the example of Fig. 4 can also be used for miso
Application.
Fig. 4 illustrates one of proximity sensor signal and alternately or is synchronously incorporated into two or more
Antenna 106a and 106b example.That is, by means of assessment circuit 104, the sampling of signal by synchronization, and can include antenna
Two or more proximity sensor electrodes of the sensing circuit of irradiator can make with a single assessment circuit 104
With.In the example illustrating in the diagram, single proximity sensor or assessment circuit 104 some time be provided to two or
The signal path of person more antenna 106a and 106b.Sensor signal can synchronously be sampled in antenna 106a and 106b
Each, and can collect by single assessment circuit 104 or sensor ic or determine from multiple electrodes to or
It is used for the proximity data of multiple antennas.
Fig. 5 is illustrated for determining object to the first antenna or second that can be used for transmission transmission signal by means of block diagram
The example of the method for the nearness of antenna.During monitoring 502, monitor the characteristic of sensing circuit, if sensing circuit has thing
Body being used for transmitting the characteristic then changing near the transmission antenna of described transmission signal, described transmission antenna be first antenna or
Person second antenna.If the characteristic that Fig. 5 further illustrates sensing circuit meets predetermined standard it indicates that transmitting antenna
Neighbouring object.
The example of some methods is related to be dynamically selected one of two antennas as the transmission for transmission signal
The miso system of transmission antenna.That is, an antenna is used for transmitting and receives, and other antennas are only applied to receive and described
Role can change.Fig. 5 further illustrate be used for transmitting described transmission signal transmission antenna whether altered can
The determination 508 of choosing.If it is not, can continue to monitor 502.If transmission antenna altered, can execute will by with
Alternatively include 506 in the antenna transmitting described transmission signal in sensing circuit.
Fig. 6 is schematically illustrated by means of the mobile handset 600 with first antenna 106a and the second antenna 106b
Mobile telecommunication apparatus or the example of user equipment.The mobile handset 600 that may, for example, be smart mobile phone is included with sensing
The circuit 100 of circuit 102 and assessment circuit 104.If sensing circuit 102 has object be used for first day of transmission signal
The characteristic then changing near line 106a or the second antenna 106b.Assessment circuit 104 is coupled to sensing circuit 102 to monitor sensing
The characteristic of circuit 102, and if using circuit 100 determine object or tissue to first antenna (106a), second
Antenna (106b) or the nearness to first antenna (106a) and the second antenna (106b), then allow to reduce the radio frequency of hand-held set
The through-put power of emitter.
Although detailing previous example using two antenna 106a and 106b, further example can also
Using with the greater amount of antenna of other configurations.It is, for example possible to use three antennas, its be configured to three or
The mimo configuration of more antennas, as being for example directed to as some wlan application descriptions.In addition although having been described above previous showing
Example is mainly used in the application in mobile telecom network or wireless communication system, but further example can be used for it
His Radio Transmission Technology, such as within one of standardized mobile communications network of 3gpp-, wherein term moves
Communication system is used synonymously with mobile communications network.Mobile or wireless communication system can correspond to such as Long Term Evolution
(lte), senior lte(lte-a), high-speed packet access (hspa), Universal Mobile Telecommunications System (umts) or umts land no
Line electricity accesses network (utran), the utran(e-utran of evolution), the carrying of Global Systems for Mobile communications (gsm) or gsm evolution
High data transfer rate (edge) network, gsm/edge radio access network (geran) or there is the movement of different standards lead to
Communication network, for example, Worldwide Interoperability for Microwave accesses interoperability (wimax) network ieee 802.16 or WLAN (wlan)
Ieee 802.11, general orthogonal frequency division multiple access (ofdma) network, Time Division Multiple Access access (tdma) network, CDMA
Access (cdma) network, broadband cdma(wcdma) network, frequency division multiple access (fdma) network, space division multiple access access (sdma)
Network etc..The further example of receiver system or tuning circuit can also together with other wireless communication standards or
Agreement is used together, such as bluetooth, zigbee etc..
Example can further provide for having when computer program executes on a computer and be used for executing
The computer program of the program code of one of above method.Those skilled in the art will readily recognize that it is described above
The step of various methods can be by the computer execution programming.Herein, some examples also attempt to coverage machine storage and set
Standby, such as digital data storage medium, it is machine or computer-readable and executable to the machine of instruction or meter
The executable program of calculation machine is encoded, and wherein this instruction executes some or whole actions in process as described above.Journey
Sequence storage device can be such as digital memory, the magnetic storage medium of such as Disk and tape, hard-drive or optical readable
Digital data storage medium.Example also attempt to cover the computer of the action being programmed to perform process as described above or
It is programmed to perform (live) programmable logic array ((f) pla) of the action of process as described above or (live) can be compiled
Journey gate array ((f) pga).
This specification merely illustrates the principle of the disclosure with drawing.Thus, it will be appreciated that those skilled in the art are possible to
Although design does not clearly describe herein or illustrates, realize the principle of the disclosure and be included in its spirit and model
Various arrangements within enclosing.Further, all of example main purpose described herein is simply clearly used for instructing
Purpose, with help reader understand the disclosure principle and by (one or more) inventor contribution concept to promote described neck
Domain, and it is to be interpreted as the restriction of the not example to such concrete record and condition.Additionally, disclosed in this paper notebook
The all of statement of principle, aspect and example and its specific example is intended to encompass its equivalents.
The functional module being represented as " device being used for ... " (executing certain function) will be understood to comprise and is configured to
Correspondingly execute the circuit function module of certain function.Therefore, " for the device of something " can also be understood to " be configured to
Or it is suitable for the device of something ".Therefore, the device being configured to execute certain function does not imply that such device (given
Moment) this function must be carrying out.
The function of the various elements shown in in figure, including being marked as " device ", " for providing the dress of sensor signal
Put ", any functional module of " for generating the device of transmission signal " etc., can by using such as " signal provider ",
The specialized hardware of " signal processing unit ", " processor ", " controller " etc. and being able to carry out is associated with suitable software
The hardware of software providing.Additionally, any entity being described herein as " device " can correspond to or can be by
It is embodied as " one or more module ", " one or more equipment ", " one or more unit " etc..When function is provided by processor
When, described function some can be able to be shared by single application specific processor, by single shared processor or by therein
Multiple single processor provide.Additionally, term " processor " or " controller " is clearly exclusive using being not necessarily to be construed as
Refer to the hardware being able to carry out software, and can imply that including but not limited to digital signal processor (dsp) hardware, net
Network processor, special IC (asic), field programmable gate array (fpga), the read only memory for storing software
(rom), random access storage device (ram) and non-volatile memories.(conventional and/or customization) other hardware can also be included.
It will be understood by those skilled in the art that any block diagram represents the illustrative circuit of the principle realizing the disclosure herein
Conceptual view.Similarly, it will be appreciated that any flow chart, flow chart, state transition diagram, false code etc. represent can calculate
Substantially represent and therefore by the various processes of computer or computing device in machine computer-readable recording medium, no matter such calculating
Whether machine or processor are explicitly shown.
Further, claims below is hereby incorporated in specific embodiment, wherein each claim
Can independently set up as single example.Although each claim is independently set up as single example, should
Note, although dependent claims in the claims can quote specific group with other claim one or more
Close, but other examples can also include the group of dependent claims and each other subordinate or the theme of independent claims
Close.Unless set forth specific combination be not intended to, otherwise propose such combination herein.Even if further it is intended that
This claim is not directly subordinated to independent claims, and this claim also includes any other independent claims
Feature.
Further it should be noted that can by have for execute these methods corresponding action in the device of each
Equipment being implemented in the method disclosed in description or claims.
Further it will be appreciated that the disclosure of multiple actions disclosed in description or claim or function can
To be not construed as within specific order.Therefore, the disclosure of multiple actions or function these will not be restricted to specific
Order, unless for technical reasons, such action or function are non-interchangeable.Further, in some examples
In, individual part can include or be broken down into many sub- actions.Unless be explicitly excluded, otherwise such sub- action can
To be included and as its part by the open of this individual part.
Claims (14)
1. a kind of for determine object operable to transmit the presence near the first antenna of transmission signal or the second antenna
Device, comprising:
There is the variable spy to the operable first antenna to transmit transmission signal or the nearness of the second antenna based on object
The device of property, the device wherein with described variable characteristic includes first antenna and the second antenna；
For monitoring described characteristic and being used for determining whether described characteristic meets the device of predetermined standard；And
It is configured to be used for monitoring the device of described characteristic and be used for transmitting the device that the antenna of described transmission signal couples.
2. device as claimed in claim 1, further includes:
If meeting described predetermined standard for described characteristic, generate indicator body attached in first antenna or the second antenna
The device of the proximity signal of near presence.
3., as device in any one of the preceding claims wherein, wherein said predetermined standard is predetermined threshold value.
4. device as claimed in claim 1 or 2, wherein said variable characteristic is electric capacity.
5. device as claimed in claim 1 or 2, wherein said predetermined standard corresponds to object to the absorption of electromagnetic energy
Threshold value.
6. device as claimed in claim 1 or 2, further includes:
Transmitting device, is configured to generate the transmission signal by first antenna or by the second antenna transmission.
7. device as claimed in claim 6, if wherein said transmitting device is configured to described characteristic and meets described making a reservation for
Standard, then reduce the power of described transmission signal.
8. device as claimed in claim 1 or 2, if the device wherein with described variable characteristic includes first antenna and uses
Then include first antenna in transmission signal, or if the second antenna is used for transmission signal, including the second antenna.
9. device as claimed in claim 1 or 2, is wherein configured to be used for transmitting the antenna of described transmission signal and be used for
The device of the device coupling monitoring is configured to coupling first antenna and coupling second at the second moment at the first moment
Antenna.
10. device as claimed in claim 1 or 2, is wherein configured to be used for transmitting antenna and the use of described transmission signal
Device in the device coupling monitoring is configured to alternately couple first antenna and the second antenna.
11. devices as claimed in claim 1 or 2, wherein said variable characteristic is based on object to the first and second antennas
Nearness.
12. a kind of for determining that object can be used for transmitting the presence near the first antenna of transmission signal or the second antenna
Method, comprising:
Monitor the characteristic of sensing circuit, described sensing circuit is included based on object to the first antenna that can be used for transmission transmission signal
Or second antenna nearness variable characteristic；
If described characteristic meets predetermined standard it indicates that object near first antenna or the second antenna；
Determine whether the antenna being used for transmitting transmission signal is altered；And
If be used for transmit transmission signal antenna altered, in sensing circuit using be used for transmit transmission signal
Antenna.
13. a kind of for determine object operable to transmit the presence near the first antenna of transmission signal or the second antenna
Device, comprising:
There is the device of variable characteristic, described variable characteristic is based on object to the first antenna that can be used for transmission transmission signal
Or second antenna nearness；
For monitoring described characteristic and being used for determining whether described characteristic meets the device of predetermined standard；And
It is configured to the device that the device being used for monitoring described characteristic is coupled with the antenna being used for transmitting transmission signal.
14. devices as claimed in claim 13, the device wherein with described variable characteristic is configured to couple to first
Antenna or the second antenna.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014101906.7A DE102014101906B4 (en) | 2014-02-14 | 2014-02-14 | Circuit, transmission system and method for determining proximity of an object |
| DE102014101906.7 | 2014-02-14 | ||
| CN201510018488.5A CN104852774B (en) | 2014-02-14 | 2015-01-14 | For determining circuit, Transmission system and the method for the degree of approach of object |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510018488.5A Division CN104852774B (en) | 2014-02-14 | 2015-01-14 | For determining circuit, Transmission system and the method for the degree of approach of object |
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| CN106374959A true CN106374959A (en) | 2017-02-01 |
| CN106374959B CN106374959B (en) | 2019-05-10 |
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| CN201510018488.5A Active CN104852774B (en) | 2014-02-14 | 2015-01-14 | For determining circuit, Transmission system and the method for the degree of approach of object |
| CN201811621991.XA Active CN109981128B (en) | 2014-02-14 | 2015-01-14 | Circuit, transmission system and method for determining proximity of object |
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| CN201811621991.XA Active CN109981128B (en) | 2014-02-14 | 2015-01-14 | Circuit, transmission system and method for determining proximity of object |
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| CN106856513B (en) * | 2015-12-07 | 2019-08-06 | 小米科技有限责任公司 | A kind of terminal with communication function |
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| KR102456541B1 (en) * | 2016-06-22 | 2022-10-19 | 삼성전자 주식회사 | Method for switching of antenna for reducing specific absorption rate and electronic device supporting the same |
| KR102621757B1 (en) * | 2016-09-07 | 2024-01-08 | 삼성전자주식회사 | the Antenna for Wireless Communication and the Electronic Device including the same |
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| US10942596B2 (en) * | 2016-10-03 | 2021-03-09 | Carnegie Mellon University | Touch-sensing system |
| JP6802032B2 (en) * | 2016-10-18 | 2020-12-16 | Ｎｅｃプラットフォームズ株式会社 | Wireless communication equipment, wireless communication methods, and programs |
| EP3583659A1 (en) * | 2017-02-20 | 2019-12-25 | Smart Antenna Technologies Ltd | Triple wideband hybrid lte slot antenna |
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| WO2019078837A1 (en) * | 2017-10-18 | 2019-04-25 | Hewlett-Packard Development Company, L.P. | Antennas to determine object presence |
| CN111726135B (en) * | 2019-03-22 | 2022-01-14 | 成都华为技术有限公司 | Communication method and communication device |
| CN111464244A (en) * | 2020-03-23 | 2020-07-28 | 深圳海翼智新科技有限公司 | Radio frequency circuit, detection method and electronic device |
| TW202139610A (en) * | 2020-03-31 | 2021-10-16 | 昇佳電子股份有限公司 | Transmission structure of antenna and proximity sensing circuit |
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Also Published As
| Publication number | Publication date |
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| CN104852774A (en) | 2015-08-19 |
| US9864087B2 (en) | 2018-01-09 |
| US20160370487A1 (en) | 2016-12-22 |
| DE102014101906A1 (en) | 2015-08-20 |
| CN104852774B (en) | 2019-02-12 |
| US20220221611A1 (en) | 2022-07-14 |
| DE102014101906B4 (en) | 2016-08-04 |
| US20150234077A1 (en) | 2015-08-20 |
| CN106374959B (en) | 2019-05-10 |
| US10203425B2 (en) | 2019-02-12 |
| TWI578726B (en) | 2017-04-11 |
| CN109981128A (en) | 2019-07-05 |
| US11294089B2 (en) | 2022-04-05 |
| CN109981128B (en) | 2022-01-07 |
| US20190219720A1 (en) | 2019-07-18 |
| TWI646787B (en) | 2019-01-01 |
| TW201701602A (en) | 2017-01-01 |
| TW201547221A (en) | 2015-12-16 |
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